“…The effect of various cell sources have been investigated in animal models of PD, as well as in humans, and these include, embryonic stem (ES) cells (Freed et al, 2001;Kim et al, 2002, see Lindvall and, induced pluripotent stem (iPS) cells (Wernig et al, 2008), fetal and adult brain-derived neural stem cells (NSC; Hermann et al, 2006;Schwarz et al, 2006), mesenchymal stem cells (MSC; Hellmann et al, 2006;Cova et al, 2010), and amniotic fluid stem (AFS) cells (Donaldson et al, 2009). In an interesting application of regenerative pharmacology, neural progenitors generated from pluripotent stem cells in culture were induced to give rise to dopaminergic neurons, which hold therapeutic potential for PD.…”